It will not be that easy to get rid of that pawn.
10... e4d2 Once more, a very practical choice by McCoy. 11. e2d2  11... c5c4  12. d3e2 The opening was a success for the second player. True, his bishop is blocked by his own pawns, but this does not mean that it cannot enter the game. One idea is to position it on the a4-square; another is to open a path for it on the kingside with a timely f7-f6 (f5) push. Moreover, since Black has managed to trade a couple of light pieces, he has enough room to maneuver with his remaining ones. Later the king will find a safe shelter on the queenside, and there is a chance that the white a-pawn turns into a weakness. 12... d8e7 A flexible move and a novelty.